Eton Pharmaceuticals Inc

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Eton Pharmaceuticals Inc
TickerETON
CIK #0001710340
CUSIP29772L108
SectorLife Sciences - Pharmaceutical Preparations
Address12264 El Camino Real, San Diego, CA 92130
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Eton Pharmaceuticals Inc 2020-04-08 7.5 M Exemption: 506(b) · Duration: One year or less · Revenue: $1 - $1,000,000
CIK Filing 2011 - 2026
[0001710340] 10-K
[0001710340] 10-Q
[0001710340] 3
[0001710340] 4
[0001710340] 5
[0001710340] 8-K
[0001710340] D
[0001710340] SC 13D
[0001710340] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Vanguard Group Inc Eton Pharmaceuticals Inc [2025-10-30] 0.0
BlackRock Inc Eton Pharmaceuticals Inc [2025-07-17] 0.0
EcoR1 Capital LLC Eton Pharmaceuticals Inc [2024-12-09] 5.4
Opaleye Management Inc Eton Pharmaceuticals Inc [2019-05-24] 11.0
Brynjelsen Sean Eton Pharmaceuticals Inc [2019-02-11] 6.6
Imprimis Pharmaceuticals Inc Eton Pharmaceuticals Inc [2018-11-23] 20.7
Appel Peter A Eton Pharmaceuticals Inc [2018-11-21] 7.4
Form 3/4/5 Filer 2011 - 2026
Opaleye Management Inc
Eton Pharmaceuticals Inc
Krempa David
Adams Jennifer McKie
Matthews Judith M
Brynjelsen Sean
Riedel Norbert G
Gruber James R
Casamento Charles J
Maier Paul V
Erdogan-Trinkaus Ipek
Troutman William Wilson
Harrow Inc
BAUM Mark L
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Riedel Norbert G
Employee Stock Option (Right to Buy) · derivative
2026-02-03 Option exercise 30,000 $0.00
Riedel Norbert G
Common Stock
2026-02-03 Option exercise 30,000 $4.42 132,600
Gruber James R
Common Stock
2026-01-14 Tax withheld 2,293 $15.47 35,473
Krempa David
Common Stock
2026-01-14 Tax withheld 1,942 $15.62 30,334
Adams Jennifer McKie
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 12,196 $0.00
Casamento Charles J
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 12,196 $0.00
Casamento Charles J
Restricted Stock Units · derivative
2026-01-12 Grant 7,757 $0.00
Maier Paul V
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 12,196 $0.00
Maier Paul V
Restricted Stock Units · derivative
2026-01-12 Grant 7,757 $0.00
Erdogan-Trinkaus Ipek
Restricted Stock Units · derivative
2026-01-12 Grant 25,856 $0.00
Erdogan-Trinkaus Ipek
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 40,655 $0.00
Brynjelsen Sean
Restricted Stock Units · derivative
2026-01-12 Grant 100,517 $0.00
Brynjelsen Sean
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 158,046 $0.00
Krempa David
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 40,655 $0.00
Krempa David
Restricted Stock Units · derivative
2026-01-12 Grant 25,856 $0.00
Gruber James R
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 40,655 $0.00
Gruber James R
Restricted Stock Units · derivative
2026-01-12 Grant 25,856 $0.00
Riedel Norbert G
Employee Stock Option (Right to Buy) · derivative
2026-01-12 Grant 12,196 $0.00
Riedel Norbert G
Restricted Stock Units · derivative
2026-01-12 Grant 7,757 $0.00
Adams Jennifer McKie
Restricted Stock Units · derivative
2026-01-12 Grant 7,757 $0.00
showing 20 of 163 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 116 17,606,210
2025-12-31 105 16,098,586
2025-09-30 104 18,226,665
2025-06-30 88 16,558,081
2025-03-31 87 14,060,648
2024-12-31 73 13,503,200
2024-09-30 50 10,262,249
2024-06-30 46 9,903,153
2024-03-31 45 7,746,731
2023-12-31 57 7,681,561
2023-09-30 53 6,950,900
2023-06-30 34 6,011,727
Form 13F Holdings
Firm Period DFND Voting Shares
Wasatch Advisors LP [2026-06-30] SOLE 92,742 92,742
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 33,542 33,542
Juncture Wealth Strategies LLC [2026-06-30] SOLE 28,849 28,849
Chicago Trust Co NA [2026-06-30] OTR 16,700 16,700
Alaska Retirement Management Board [2026-06-30] SOLE 6,943 6,943
Toth Financial Advisory Corp [2026-06-30] SOLE 1,200 1,200
Farther Finance Advisors LLC [2026-06-30] SOLE 0 123
Versant Capital Management Inc [2026-06-30] SOLE 61 61
MassMutual Private Wealth & Trust FSB [2026-06-30] SOLE 52 52
Hughes Financial Services LLC [2026-06-30] SOLE 33 33
Gamma Investing LLC [2026-06-30] DFND 21 21
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